Example usage for io.netty.buffer ByteBuf readableBytes

List of usage examples for io.netty.buffer ByteBuf readableBytes

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Introduction

In this page you can find the example usage for io.netty.buffer ByteBuf readableBytes.

Prototype

public abstract int readableBytes();

Source Link

Document

Returns the number of readable bytes which is equal to (this.writerIndex - this.readerIndex) .

Usage

From source file:com.heliosapm.streams.opentsdb.KafkaRPCTest.java

License:Apache License

protected void send(final Set<StreamedMetricValue> metrics) {
    final ByteBuf buff = BufferManager.getInstance().buffer(metrics.size() * 128);

    try {/*w  w  w  .  j a  v a2 s . com*/

        for (StreamedMetricValue smv : metrics) {
            smv.intoByteBuf(buff);
        }
        log("Sent Buff Size:" + buff.readableBytes());
        final int vsize = producer.send(new ProducerRecord<String, ByteBuf>("tsdb.metrics.binary", buff)).get()
                .serializedValueSize();
        log("Sent Value Size:" + vsize);
    } catch (Exception ex) {
        throw new RuntimeException(ex);
    } finally {
        try {
            buff.release();
        } catch (Exception x) {
            /* No Op */}
    }
}

From source file:com.heliosapm.streams.opentsdb.KafkaRTPublisher.java

License:Apache License

/**
 * {@inheritDoc}//from   ww  w.ja  va 2  s . co m
 * @see com.heliosapm.streams.chronicle.MessageListener#onMetric(io.netty.buffer.ByteBuf)
 */
@Override
public int onMetric(final ByteBuf buf) {
    log.debug("OnMetric Buffer: {} bytes", buf.readableBytes());
    try {
        int totalCount = 0;
        try {
            final Iterator<StreamedMetricValue> iter = StreamedMetricValue.streamedMetricValues(true, buf, true)
                    .iterator();
            while (iter.hasNext()) {
                final StreamedMetricValue smv = iter.next();
                kafkaSender
                        .send(new ProducerRecord<String, StreamedMetricValue>(topicName, smv.metricKey(), smv));
                totalCount++;
            }
        } catch (Exception ex) {
            log.error("OnMetric Error", ex);
        }
        return totalCount;
    } finally {
        try {
            buf.release();
        } catch (Exception ex) {
            /* No Op */}
    }
}

From source file:com.heliosapm.streams.tracing.writers.NetWriter.java

License:Apache License

/**
 * {@inheritDoc}//from w  w  w  . ja  va 2 s .c om
 * @see com.heliosapm.streams.tracing.AbstractMetricWriter#onMetrics(io.netty.buffer.ByteBuf)
 */
@Override
public void onMetrics(final ByteBuf metrics) {
    if (metrics == null || metrics.readableBytes() < 5)
        return;
    final int size = metrics.getInt(1);
    if (!connectionsAvailable.get()) {
        // FIXME: drop counter
        return;
    }

    boolean complete = false;
    for (Channel ch : channels) {
        final ChannelFuture cf = ch.writeAndFlush(metrics).syncUninterruptibly();
        if (cf.isSuccess()) {
            complete = true;
            break;
        }
    }
    if (!complete) {
        this.failedMetrics.add(size);
    }
}

From source file:com.heliosapm.tsdblite.handlers.http.TSDBHttpRequest.java

License:Apache License

private static HttpResponse response(final HttpResponseStatus status, final String... msgs) {
    final ByteBuf buf = join(msgs);
    if (buf.readableBytes() == 0) {
        return new DefaultHttpResponse(HttpVersion.HTTP_1_1, status);
    }/*from   w  ww. jav  a 2s  .  c o  m*/
    final DefaultFullHttpResponse resp = new DefaultFullHttpResponse(HttpVersion.HTTP_1_1, status, buf);
    resp.headers().setInt(HttpHeaders.CONTENT_LENGTH, buf.readableBytes());
    resp.headers().set(HttpHeaders.CONTENT_TYPE, "text/plain");
    return resp;
}

From source file:com.heliosapm.tsdblite.handlers.http.TSDBHttpRequest.java

License:Apache License

/**
 * Indicates if the request has a readable content body
 * @return true if the request has a readable content body, false otherwise
 *///from   w  ww. j  a v  a  2s .c om
public boolean hasContent() {
    if (request instanceof FullHttpRequest) {
        final ByteBuf content = ((FullHttpRequest) request).content();
        if (content == null)
            return false;
        if (content.readableBytes() < 1)
            return false;
        return true;
    }
    return false;
}

From source file:com.heliosapm.tsdblite.handlers.ProtocolSwitch.java

License:Apache License

/**
 * {@inheritDoc}/* w w  w  . ja va 2  s  .  c  om*/
 * @see io.netty.handler.codec.ByteToMessageDecoder#decode(io.netty.channel.ChannelHandlerContext, io.netty.buffer.ByteBuf, java.util.List)
 */
@Override
protected void decode(final ChannelHandlerContext ctx, final ByteBuf in, final List<Object> out)
        throws Exception {
    // Will use the first five bytes to detect a protocol.
    if (in.readableBytes() < 5) {
        log.info("No ProtocolSwitch. Bytes: {}", in.readableBytes());
        return;
    }
    final int magic1 = in.getUnsignedByte(in.readerIndex());
    final int magic2 = in.getUnsignedByte(in.readerIndex() + 1);
    if (detectGzip && isGzip(magic1, magic2)) {
        enableGzip(ctx);
        log.info("Enabled GZip on channel [{}]", ctx.channel().id().asShortText());
    } else if (isHttp(magic1, magic2)) {
        switchToHttp(ctx);
        log.info("Switched to HTTP on channel [{}]", ctx.channel().id().asShortText());
    } else if (isText(magic1, magic2)) {
        switchToPlainText(ctx);
        log.info("Switched to PlainText on channel [{}]", ctx.channel().id().asShortText());
    } else {
        log.error("No protocol recognized on [{}]", ctx.channel().id().asLongText());
        in.clear();
        ctx.close();
    }
}

From source file:com.heliosapm.webrpc.jsonservice.JSONRequest.java

License:Apache License

/**
 * Creates a new JSONRequest//from   ww  w . java 2s  .  co  m
 * @param channel The channel the request came in on
 * @param jsonContent The buffer containing the json content to build the request from
 * @return a new JSONRequest
 */
public static JSONRequest newJSONRequest(final Channel channel, final ByteBuf jsonContent) {
    if (jsonContent == null || jsonContent.readableBytes() < 2)
        throw new IllegalArgumentException("The passed json content was null or empty");
    try {
        final JsonNode jsonNode = JSONOps.parseToNode(jsonContent);
        return new JSONRequest(channel, jsonNode.get("t").asText(), jsonNode.get("rid").asLong(-1L), -1L,
                jsonNode.get("svc").asText(), jsonNode.get("op").asText(), jsonNode);
    } catch (Exception e) {
        throw new RuntimeException("Failed to parse JsonNode from passed buffer [" + jsonContent + "]", e);
    }

}

From source file:com.hiido.eagle.hes.transfer.FileTransferServer.java

License:Apache License

protected FileStoreInfo createAndStoreFile(ChannelHandlerContext ctx, Object msg) throws Exception {
    ByteBuf in = (ByteBuf) msg;
    int filePathSize = in.readInt();
    String fileName = new String(in.readBytes(filePathSize).array());
    long fileSize = in.readLong();

    String localPath = TransferServerConfig.class.getResource("/").getPath() + fileName;
    logger.info("Start to handler the file [{}] with size [{}b] which be writen to local disk [{}]", fileName,
            fileSize, localPath);/*w w w  .ja  v  a2 s.com*/

    long currFileSize = in.readableBytes();
    ByteBuffer buf = ByteBuffer.allocate((int) currFileSize);
    in.readBytes(buf);

    RandomAccessFile accessfile = new RandomAccessFile(localPath, "rw");
    FileChannel fileChannel = accessfile.getChannel();
    fileChannel.write(buf);
    return new FileStoreInfo(accessfile, fileChannel, fileName, fileSize, currFileSize);
}

From source file:com.hiido.eagle.hes.transfer.FileTransferServer.java

License:Apache License

protected void storeFile(ChannelHandlerContext ctx, Object msg, FileStoreInfo fileStoreInfo) throws Exception {
    ByteBuf in = (ByteBuf) msg;
    fileStoreInfo.incrCurrFileSize(in.readableBytes());
    fileStoreInfo.getFileChannel().write(in.nioBuffer());
}

From source file:com.hipishare.chat.test.EchoClientHandler.java

License:Apache License

@Override
public void channelRead(ChannelHandlerContext ctx, Object msg) {
    ByteBuf buf = (ByteBuf) msg;
    int len = buf.readableBytes();
    byte[] temp = new byte[len];
    ByteBuffer bb = ByteBuffer.allocate(len);
    buf.readBytes(temp);/*from   www.  j a  v  a 2 s .c  o m*/
    bb.put(temp);
    String message = new String(bb.array());
    if ("ping".equals(message)) {
        buf = Unpooled.copiedBuffer(("[id=" + ctx.channel().id() + "]" + "ok").getBytes());
        ctx.writeAndFlush(buf);
    }
}